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-rw-r--r--cpu/leon2/Makefile54
-rw-r--r--cpu/leon2/config.mk26
-rw-r--r--cpu/leon2/cpu.c66
-rw-r--r--cpu/leon2/cpu_init.c142
-rw-r--r--cpu/leon2/interrupts.c217
-rw-r--r--cpu/leon2/prom.c1047
-rw-r--r--cpu/leon2/serial.c165
-rw-r--r--cpu/leon2/start.S662
8 files changed, 0 insertions, 2379 deletions
diff --git a/cpu/leon2/Makefile b/cpu/leon2/Makefile
deleted file mode 100644
index 7cc4420179..0000000000
--- a/cpu/leon2/Makefile
+++ /dev/null
@@ -1,54 +0,0 @@
-#
-# (C) Copyright 2003-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-include $(TOPDIR)/config.mk
-
-LIB = $(obj)lib$(CPU).a
-
-START = start.o
-SOBJS =
-COBJS = cpu_init.o serial.o cpu.o interrupts.o prom.o
-
-SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
-START := $(addprefix $(obj),$(START))
-
-all: $(obj).depend $(START) $(LIB)
-
-$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-$(START): $(START:.o=.S)
- $(CC) -D__ASSEMBLY__ $(DBGFLAGS) $(OPTFLAGS) -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
- -I$(TOPDIR)/include -fno-builtin -ffreestanding -nostdinc -isystem $(gccincdir) -pipe \
- $(PLATFORM_CPPFLAGS) -Wall -Wstrict-prototypes \
- -I$(TOPDIR)/board -c -o $(START) $(START:.o=.S)
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/cpu/leon2/config.mk b/cpu/leon2/config.mk
deleted file mode 100644
index 30b224a068..0000000000
--- a/cpu/leon2/config.mk
+++ /dev/null
@@ -1,26 +0,0 @@
-#
-# (C) Copyright 2003
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-PLATFORM_RELFLAGS += -fPIC
-
-PLATFORM_CPPFLAGS += -DCONFIG_LEON
diff --git a/cpu/leon2/cpu.c b/cpu/leon2/cpu.c
deleted file mode 100644
index d6e23b129c..0000000000
--- a/cpu/leon2/cpu.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* CPU specific code for the LEON2 CPU
- *
- * (C) Copyright 2007
- * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <watchdog.h>
-#include <command.h>
-#include <netdev.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-extern void _reset_reloc(void);
-
-int checkcpu(void)
-{
- /* check LEON version here */
- printf("CPU: LEON2\n");
- return 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-void cpu_reset(void)
-{
- /* Interrupts off */
- disable_interrupts();
-
- /* jump to restart in flash */
- _reset_reloc();
-}
-
-int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
-{
- cpu_reset();
-
- return 1;
-}
-
-/* ------------------------------------------------------------------------- */
-
-#ifdef CONFIG_GRETH
-int cpu_eth_init(bd_t *bis)
-{
- return greth_initialize(bis);
-}
-#endif
diff --git a/cpu/leon2/cpu_init.c b/cpu/leon2/cpu_init.c
deleted file mode 100644
index a24f778c6d..0000000000
--- a/cpu/leon2/cpu_init.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* Initializes CPU and basic hardware such as memory
- * controllers, IRQ controller and system timer 0.
- *
- * (C) Copyright 2007
- * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-#include <asm/asi.h>
-#include <asm/leon.h>
-
-#include <config.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* reset CPU (jump to 0, without reset) */
-void start(void);
-
-struct {
- gd_t gd_area;
- bd_t bd;
-} global_data;
-
-/*
- * Breath some life into the CPU...
- *
- * Set up the memory map,
- * initialize a bunch of registers.
- *
- * Run from FLASH/PROM:
- * - until memory controller is set up, only registers avaiable
- * - no global variables available for writing
- * - constants avaiable
- */
-
-void cpu_init_f(void)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- /* initialize the IRQMP */
- leon2->Interrupt_Force = 0;
- leon2->Interrupt_Pending = 0;
- leon2->Interrupt_Clear = 0xfffe; /* clear all old pending interrupts */
- leon2->Interrupt_Mask = 0xfffe0000; /* mask all IRQs */
-
- /* cache */
-
- /* I/O port setup */
-#ifdef LEON2_IO_PORT_DIR
- leon2->PIO_Direction = LEON2_IO_PORT_DIR;
-#endif
-#ifdef LEON2_IO_PORT_DATA
- leon2->PIO_Data = LEON2_IO_PORT_DATA;
-#endif
-#ifdef LEON2_IO_PORT_INT
- leon2->PIO_Interrupt = LEON2_IO_PORT_INT;
-#else
- leon2->PIO_Interrupt = 0;
-#endif
-}
-
-void cpu_init_f2(void)
-{
-
-}
-
-/*
- * initialize higher level parts of CPU like time base and timers
- */
-int cpu_init_r(void)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- /* initialize prescaler common to all timers to 1MHz */
- leon2->Scaler_Counter = leon2->Scaler_Reload =
- (((CONFIG_SYS_CLK_FREQ / 1000) + 500) / 1000) - 1;
-
- return (0);
-}
-
-/* Uses Timer 0 to get accurate
- * pauses. Max 2 raised to 32 ticks
- *
- */
-void cpu_wait_ticks(unsigned long ticks)
-{
- unsigned long start = get_timer(0);
- while (get_timer(start) < ticks) ;
-}
-
-/* initiate and setup timer0 interrupt to 1MHz
- * Return irq number for timer int or a negative number for
- * dealing with self
- */
-int timer_interrupt_init_cpu(void)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- /* 1ms ticks */
- leon2->Timer_Counter_1 = 0;
- leon2->Timer_Reload_1 = 999; /* (((1000000 / 100) - 1)) */
- leon2->Timer_Control_1 =
- (LEON2_TIMER_CTRL_EN | LEON2_TIMER_CTRL_RS | LEON2_TIMER_CTRL_LD);
-
- return LEON2_TIMER1_IRQNO;
-}
-
-/*
- * This function is intended for SHORT delays only.
- */
-unsigned long cpu_usec2ticks(unsigned long usec)
-{
- /* timer set to 1kHz ==> 1 clk tick = 1 msec */
- if (usec < 1000)
- return 1;
- return (usec / 1000);
-}
-
-unsigned long cpu_ticks2usec(unsigned long ticks)
-{
- /* 1tick = 1usec */
- return ticks * 1000;
-}
diff --git a/cpu/leon2/interrupts.c b/cpu/leon2/interrupts.c
deleted file mode 100644
index 9b0da963af..0000000000
--- a/cpu/leon2/interrupts.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * (C) Copyright 2007
- * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
- *
- * (C) Copyright 2006
- * Detlev Zundel, DENX Software Engineering, dzu@denx.de
- *
- * (C) Copyright -2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2001
- * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <asm/stack.h>
-#include <common.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <command.h>
-#include <asm/irq.h>
-
-#include <asm/leon.h>
-
-/* 15 normal irqs and a non maskable interrupt */
-#define NR_IRQS 15
-
-struct irq_action {
- interrupt_handler_t *handler;
- void *arg;
- unsigned int count;
-};
-
-static struct irq_action irq_handlers[NR_IRQS] = { {0}, };
-static int spurious_irq_cnt = 0;
-static int spurious_irq = 0;
-
-static inline unsigned int leon2_get_irqmask(unsigned int irq)
-{
- if ((irq < 0) || (irq >= NR_IRQS)) {
- return 0;
- } else {
- return (1 << irq);
- }
-}
-
-static void leon2_ic_disable(unsigned int irq)
-{
- unsigned int mask, pil;
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- pil = intLock();
-
- /* get mask of interrupt */
- mask = leon2_get_irqmask(irq);
-
- /* set int level */
- leon2->Interrupt_Mask =
- SPARC_NOCACHE_READ(&leon2->Interrupt_Mask) & (~mask);
-
- intUnlock(pil);
-}
-
-static void leon2_ic_enable(unsigned int irq)
-{
- unsigned int mask, pil;
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- pil = intLock();
-
- /* get mask of interrupt */
- mask = leon2_get_irqmask(irq);
-
- /* set int level */
- leon2->Interrupt_Mask =
- SPARC_NOCACHE_READ(&leon2->Interrupt_Mask) | mask;
-
- intUnlock(pil);
-}
-
-void handler_irq(int irq, struct pt_regs *regs)
-{
- if (irq_handlers[irq].handler) {
- if (((unsigned int)irq_handlers[irq].handler > CONFIG_SYS_RAM_END) ||
- ((unsigned int)irq_handlers[irq].handler < CONFIG_SYS_RAM_BASE)
- ) {
- printf("handler_irq: bad handler: %x, irq number %d\n",
- (unsigned int)irq_handlers[irq].handler, irq);
- return;
- }
- irq_handlers[irq].handler(irq_handlers[irq].arg);
- irq_handlers[irq].count++;
- } else {
- spurious_irq_cnt++;
- spurious_irq = irq;
- }
-}
-
-void leon2_force_int(int irq)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- if ((irq >= NR_IRQS) || (irq < 0))
- return;
- printf("Forcing interrupt %d\n", irq);
-
- leon2->Interrupt_Force =
- SPARC_NOCACHE_READ(&leon2->Interrupt_Force) | (1 << irq);
-}
-
-/****************************************************************************/
-
-int interrupt_init_cpu(void)
-{
- return (0);
-}
-
-/****************************************************************************/
-
-/* Handle Timer 0 IRQ */
-void timer_interrupt_cpu(void *arg)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- leon2->Timer_Control_1 =
- (LEON2_TIMER_CTRL_EN | LEON2_TIMER_CTRL_RS | LEON2_TIMER_CTRL_LD);
-
- /* nothing to do here */
- return;
-}
-
-/****************************************************************************/
-
-/*
- * Install and free a interrupt handler.
- */
-
-void irq_install_handler(int irq, interrupt_handler_t * handler, void *arg)
-{
- if (irq < 0 || irq >= NR_IRQS) {
- printf("irq_install_handler: bad irq number %d\n", irq);
- return;
- }
-
- if (irq_handlers[irq].handler != NULL)
- printf("irq_install_handler: 0x%08lx replacing 0x%08lx\n",
- (ulong) handler, (ulong) irq_handlers[irq].handler);
-
- if (((unsigned int)handler > CONFIG_SYS_RAM_END) ||
- ((unsigned int)handler < CONFIG_SYS_RAM_BASE)
- ) {
- printf("irq_install_handler: bad handler: %x, irq number %d\n",
- (unsigned int)handler, irq);
- return;
- }
- irq_handlers[irq].handler = handler;
- irq_handlers[irq].arg = arg;
-
- /* enable irq on LEON2 hardware */
- leon2_ic_enable(irq);
-
-}
-
-void irq_free_handler(int irq)
-{
- if (irq < 0 || irq >= NR_IRQS) {
- printf("irq_free_handler: bad irq number %d\n", irq);
- return;
- }
-
- /* disable irq on LEON2 hardware */
- leon2_ic_disable(irq);
-
- irq_handlers[irq].handler = NULL;
- irq_handlers[irq].arg = NULL;
-}
-
-/****************************************************************************/
-
-#if defined(CONFIG_CMD_IRQ)
-void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
-{
- int irq;
- unsigned int pil = get_pil();
- printf("PIL level: %u\n\r", pil);
- printf("Spurious IRQ: %u, last unknown IRQ: %d\n",
- spurious_irq_cnt, spurious_irq);
-
- puts("\nInterrupt-Information:\n" "Nr Routine Arg Count\n");
-
- for (irq = 0; irq < NR_IRQS; irq++) {
- if (irq_handlers[irq].handler != NULL) {
- printf("%02d %08lx %08lx %ld\n", irq,
- (unsigned int)irq_handlers[irq].handler,
- (unsigned int)irq_handlers[irq].arg,
- irq_handlers[irq].count);
- }
- }
-}
-#endif
diff --git a/cpu/leon2/prom.c b/cpu/leon2/prom.c
deleted file mode 100644
index 1a6c7f79cd..0000000000
--- a/cpu/leon2/prom.c
+++ /dev/null
@@ -1,1047 +0,0 @@
-/* prom.c - emulates a sparc v0 PROM for the linux kernel.
- *
- * Copyright (C) 2003 Konrad Eisele <eiselekd@web.de>
- * Copyright (C) 2004 Stefan Holst <mail@s-holst.de>
- * Copyright (C) 2007 Daniel Hellstrom <daniel@gaisler.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-#include <asm/prom.h>
-#include <asm/machines.h>
-#include <asm/srmmu.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/leon.h>
-
-#include <config.h>
-/*
-#define PRINT_ROM_VEC
-*/
-extern struct linux_romvec *kernel_arg_promvec;
-
-#define PROM_PGT __attribute__ ((__section__ (".prom.pgt")))
-#define PROM_TEXT __attribute__ ((__section__ (".prom.text")))
-#define PROM_DATA __attribute__ ((__section__ (".prom.data")))
-
-/* for __va */
-extern int __prom_start;
-#define PAGE_OFFSET 0xf0000000
-#define phys_base CONFIG_SYS_SDRAM_BASE
-#define PROM_OFFS 8192
-#define PROM_SIZE_MASK (PROM_OFFS-1)
-#define __va(x) ( \
- (void *)( ((unsigned long)(x))-PROM_OFFS+ \
- (CONFIG_SYS_PROM_OFFSET-phys_base)+PAGE_OFFSET-TEXT_BASE ) \
- )
-#define __phy(x) ((void *)(((unsigned long)(x))-PROM_OFFS+CONFIG_SYS_PROM_OFFSET-TEXT_BASE))
-
-struct property {
- char *name;
- char *value;
- int length;
-};
-
-struct node {
- int level;
- struct property *properties;
-};
-
-static void leon_reboot(char *bcommand);
-static void leon_halt(void);
-static int leon_nbputchar(int c);
-static int leon_nbgetchar(void);
-
-static int no_nextnode(int node);
-static int no_child(int node);
-static int no_proplen(int node, char *name);
-static int no_getprop(int node, char *name, char *value);
-static int no_setprop(int node, char *name, char *value, int len);
-static char *no_nextprop(int node, char *name);
-
-static struct property PROM_TEXT *find_property(int node, char *name);
-static int PROM_TEXT leon_strcmp(const char *s1, const char *s2);
-static void *PROM_TEXT leon_memcpy(void *dest, const void *src, size_t n);
-static void PROM_TEXT leon_reboot_physical(char *bcommand);
-
-void __inline__ leon_flush_cache_all(void)
-{
- __asm__ __volatile__(" flush ");
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"::"i"(ASI_DFLUSH):"memory");
-}
-
-void __inline__ leon_flush_tlb_all(void)
-{
- leon_flush_cache_all();
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"::"r"(0x400),
- "i"(ASI_MMUFLUSH):"memory");
-}
-
-typedef struct {
- unsigned int ctx_table[256];
- unsigned int pgd_table[256];
-} sparc_srmmu_setup;
-
-sparc_srmmu_setup srmmu_tables PROM_PGT = {
- {0},
- {0x1e,
- 0x10001e,
- 0x20001e,
- 0x30001e,
- 0x40001e,
- 0x50001e,
- 0x60001e,
- 0x70001e,
- 0x80001e,
- 0x90001e,
- 0xa0001e,
- 0xb0001e,
- 0xc0001e,
- 0xd0001e,
- 0xe0001e,
- 0xf0001e,
- 0x100001e,
- 0x110001e,
- 0x120001e,
- 0x130001e,
- 0x140001e,
- 0x150001e,
- 0x160001e,
- 0x170001e,
- 0x180001e,
- 0x190001e,
- 0x1a0001e,
- 0x1b0001e,
- 0x1c0001e,
- 0x1d0001e,
- 0x1e0001e,
- 0x1f0001e,
- 0x200001e,
- 0x210001e,
- 0x220001e,
- 0x230001e,
- 0x240001e,
- 0x250001e,
- 0x260001e,
- 0x270001e,
- 0x280001e,
- 0x290001e,
- 0x2a0001e,
- 0x2b0001e,
- 0x2c0001e,
- 0x2d0001e,
- 0x2e0001e,
- 0x2f0001e,
- 0x300001e,
- 0x310001e,
- 0x320001e,
- 0x330001e,
- 0x340001e,
- 0x350001e,
- 0x360001e,
- 0x370001e,
- 0x380001e,
- 0x390001e,
- 0x3a0001e,
- 0x3b0001e,
- 0x3c0001e,
- 0x3d0001e,
- 0x3e0001e,
- 0x3f0001e,
- 0x400001e,
- 0x410001e,
- 0x420001e,
- 0x430001e,
- 0x440001e,
- 0x450001e,
- 0x460001e,
- 0x470001e,
- 0x480001e,
- 0x490001e,
- 0x4a0001e,
- 0x4b0001e,
- 0x4c0001e,
- 0x4d0001e,
- 0x4e0001e,
- 0x4f0001e,
- 0x500001e,
- 0x510001e,
- 0x520001e,
- 0x530001e,
- 0x540001e,
- 0x550001e,
- 0x560001e,
- 0x570001e,
- 0x580001e,
- 0x590001e,
- 0x5a0001e,
- 0x5b0001e,
- 0x5c0001e,
- 0x5d0001e,
- 0x5e0001e,
- 0x5f0001e,
- 0x600001e,
- 0x610001e,
- 0x620001e,
- 0x630001e,
- 0x640001e,
- 0x650001e,
- 0x660001e,
- 0x670001e,
- 0x680001e,
- 0x690001e,
- 0x6a0001e,
- 0x6b0001e,
- 0x6c0001e,
- 0x6d0001e,
- 0x6e0001e,
- 0x6f0001e,
- 0x700001e,
- 0x710001e,
- 0x720001e,
- 0x730001e,
- 0x740001e,
- 0x750001e,
- 0x760001e,
- 0x770001e,
- 0x780001e,
- 0x790001e,
- 0x7a0001e,
- 0x7b0001e,
- 0x7c0001e,
- 0x7d0001e,
- 0x7e0001e,
- 0x7f0001e,
- 0x800001e,
- 0x810001e,
- 0x820001e,
- 0x830001e,
- 0x840001e,
- 0x850001e,
- 0x860001e,
- 0x870001e,
- 0x880001e,
- 0x890001e,
- 0x8a0001e,
- 0x8b0001e,
- 0x8c0001e,
- 0x8d0001e,
- 0x8e0001e,
- 0x8f0001e,
- 0x900001e,
- 0x910001e,
- 0x920001e,
- 0x930001e,
- 0x940001e,
- 0x950001e,
- 0x960001e,
- 0x970001e,
- 0x980001e,
- 0x990001e,
- 0x9a0001e,
- 0x9b0001e,
- 0x9c0001e,
- 0x9d0001e,
- 0x9e0001e,
- 0x9f0001e,
- 0xa00001e,
- 0xa10001e,
- 0xa20001e,
- 0xa30001e,
- 0xa40001e,
- 0xa50001e,
- 0xa60001e,
- 0xa70001e,
- 0xa80001e,
- 0xa90001e,
- 0xaa0001e,
- 0xab0001e,
- 0xac0001e,
- 0xad0001e,
- 0xae0001e,
- 0xaf0001e,
- 0xb00001e,
- 0xb10001e,
- 0xb20001e,
- 0xb30001e,
- 0xb40001e,
- 0xb50001e,
- 0xb60001e,
- 0xb70001e,
- 0xb80001e,
- 0xb90001e,
- 0xba0001e,
- 0xbb0001e,
- 0xbc0001e,
- 0xbd0001e,
- 0xbe0001e,
- 0xbf0001e,
- 0xc00001e,
- 0xc10001e,
- 0xc20001e,
- 0xc30001e,
- 0xc40001e,
- 0xc50001e,
- 0xc60001e,
- 0xc70001e,
- 0xc80001e,
- 0xc90001e,
- 0xca0001e,
- 0xcb0001e,
- 0xcc0001e,
- 0xcd0001e,
- 0xce0001e,
- 0xcf0001e,
- 0xd00001e,
- 0xd10001e,
- 0xd20001e,
- 0xd30001e,
- 0xd40001e,
- 0xd50001e,
- 0xd60001e,
- 0xd70001e,
- 0xd80001e,
- 0xd90001e,
- 0xda0001e,
- 0xdb0001e,
- 0xdc0001e,
- 0xdd0001e,
- 0xde0001e,
- 0xdf0001e,
- 0xe00001e,
- 0xe10001e,
- 0xe20001e,
- 0xe30001e,
- 0xe40001e,
- 0xe50001e,
- 0xe60001e,
- 0xe70001e,
- 0xe80001e,
- 0xe90001e,
- 0xea0001e,
- 0xeb0001e,
- 0xec0001e,
- 0xed0001e,
- 0xee0001e,
- 0xef0001e,
- 0x400001e /* default */
- }
-};
-
-/* a self contained prom info structure */
-struct leon_reloc_func {
- struct property *(*find_property) (int node, char *name);
- int (*strcmp) (char *s1, char *s2);
- void *(*memcpy) (void *dest, const void *src, size_t n);
- void (*reboot_physical) (char *cmd);
-};
-
-struct leon_prom_info {
- int freq_khz;
- int leon_nctx;
- int mids[32];
- int baudrates[2];
- struct leon_reloc_func reloc_funcs;
- struct property root_properties[4];
- struct property cpu_properties[7];
-#undef CPUENTRY
-#define CPUENTRY(idx) struct property cpu_properties##idx[4]
- CPUENTRY(1);
- CPUENTRY(2);
- CPUENTRY(3);
- CPUENTRY(4);
- CPUENTRY(5);
- CPUENTRY(6);
- CPUENTRY(7);
- CPUENTRY(8);
- CPUENTRY(9);
- CPUENTRY(10);
- CPUENTRY(11);
- CPUENTRY(12);
- CPUENTRY(13);
- CPUENTRY(14);
- CPUENTRY(15);
- CPUENTRY(16);
- CPUENTRY(17);
- CPUENTRY(18);
- CPUENTRY(19);
- CPUENTRY(20);
- CPUENTRY(21);
- CPUENTRY(22);
- CPUENTRY(23);
- CPUENTRY(24);
- CPUENTRY(25);
- CPUENTRY(26);
- CPUENTRY(27);
- CPUENTRY(28);
- CPUENTRY(29);
- CPUENTRY(30);
- CPUENTRY(31);
- struct idprom idprom;
- struct linux_nodeops nodeops;
- struct linux_mlist_v0 *totphys_p;
- struct linux_mlist_v0 totphys;
- struct linux_mlist_v0 *avail_p;
- struct linux_mlist_v0 avail;
- struct linux_mlist_v0 *prommap_p;
- void (*synchook) (void);
- struct linux_arguments_v0 *bootargs_p;
- struct linux_arguments_v0 bootargs;
- struct linux_romvec romvec;
- struct node nodes[35];
- char s_device_type[12];
- char s_cpu[4];
- char s_mid[4];
- char s_idprom[7];
- char s_compatability[14];
- char s_leon2[6];
- char s_mmu_nctx[9];
- char s_frequency[16];
- char s_uart1_baud[11];
- char s_uart2_baud[11];
- char arg[256];
-};
-
-/* static prom info */
-static struct leon_prom_info PROM_DATA spi = {
- CONFIG_SYS_CLK_FREQ / 1000,
- 256,
- {
-#undef CPUENTRY
-#define CPUENTRY(idx) idx
- CPUENTRY(0),
- CPUENTRY(1),
- CPUENTRY(2),
- CPUENTRY(3),
- CPUENTRY(4),
- CPUENTRY(5),
- CPUENTRY(6),
- CPUENTRY(7),
- CPUENTRY(8),
- CPUENTRY(9),
- CPUENTRY(10),
- CPUENTRY(11),
- CPUENTRY(12),
- CPUENTRY(13),
- CPUENTRY(14),
- CPUENTRY(15),
- CPUENTRY(16),
- CPUENTRY(17),
- CPUENTRY(18),
- CPUENTRY(19),
- CPUENTRY(20),
- CPUENTRY(21),
- CPUENTRY(22),
- CPUENTRY(23),
- CPUENTRY(24),
- CPUENTRY(25),
- CPUENTRY(26),
- CPUENTRY(27),
- CPUENTRY(28),
- CPUENTRY(29),
- CPUENTRY(30),
- 31},
- {38400, 38400},
- {
- __va(find_property),
- __va(leon_strcmp),
- __va(leon_memcpy),
- __phy(leon_reboot_physical),
- },
- {
- {__va(spi.s_device_type), __va(spi.s_idprom), 4},
- {__va(spi.s_idprom), (char *)__va(&spi.idprom), sizeof(struct idprom)},
- {__va(spi.s_compatability), __va(spi.s_leon2), 5},
- {NULL, NULL, -1}
- },
- {
- {__va(spi.s_device_type), __va(spi.s_cpu), 4},
- {__va(spi.s_mid), __va(&spi.mids[0]), 4},
- {__va(spi.s_mmu_nctx), (char *)__va(&spi.leon_nctx), 4},
- {__va(spi.s_frequency), (char *)__va(&spi.freq_khz), 4},
- {__va(spi.s_uart1_baud), (char *)__va(&spi.baudrates[0]), 4},
- {__va(spi.s_uart2_baud), (char *)__va(&spi.baudrates[1]), 4},
- {NULL, NULL, -1}
- },
-#undef CPUENTRY
-#define CPUENTRY(idx) \
- { /* cpu_properties */ \
- {__va(spi.s_device_type), __va(spi.s_cpu), 4}, \
- {__va(spi.s_mid), __va(&spi.mids[idx]), 4}, \
- {__va(spi.s_frequency), (char *)__va(&spi.freq_khz), 4}, \
- {NULL, NULL, -1} \
- }
- CPUENTRY(1),
- CPUENTRY(2),
- CPUENTRY(3),
- CPUENTRY(4),
- CPUENTRY(5),
- CPUENTRY(6),
- CPUENTRY(7),
- CPUENTRY(8),
- CPUENTRY(9),
- CPUENTRY(10),
- CPUENTRY(11),
- CPUENTRY(12),
- CPUENTRY(13),
- CPUENTRY(14),
- CPUENTRY(15),
- CPUENTRY(16),
- CPUENTRY(17),
- CPUENTRY(18),
- CPUENTRY(19),
- CPUENTRY(20),
- CPUENTRY(21),
- CPUENTRY(22),
- CPUENTRY(23),
- CPUENTRY(24),
- CPUENTRY(25),
- CPUENTRY(26),
- CPUENTRY(27),
- CPUENTRY(28),
- CPUENTRY(29),
- CPUENTRY(30),
- CPUENTRY(31),
- {
- 0x01, /* format */
- M_LEON2 | M_LEON2_SOC, /* machine type */
- {0, 0, 0, 0, 0, 0}, /* eth */
- 0, /* date */
- 0, /* sernum */
- 0, /* checksum */
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* reserved */
- },
- {
- __va(no_nextnode),
- __va(no_child),
- __va(no_proplen),
- __va(no_getprop),
- __va(no_setprop),
- __va(no_nextprop)
- },
- __va(&spi.totphys),
- {
- NULL,
- (char *)CONFIG_SYS_SDRAM_BASE,
- 0,
- },
- __va(&spi.avail),
- {
- NULL,
- (char *)CONFIG_SYS_SDRAM_BASE,
- 0,
- },
- NULL, /* prommap_p */
- NULL,
- __va(&spi.bootargs),
- {
- {NULL, __va(spi.arg), NULL /*... */ },
- /*... */
- },
- {
- 0,
- 0, /* sun4c v0 prom */
- 0, 0,
- {__va(&spi.totphys_p), __va(&spi.prommap_p), __va(&spi.avail_p)},
- __va(&spi.nodeops),
- NULL, {NULL /* ... */ },
- NULL, NULL,
- NULL, NULL, /* pv_getchar, pv_putchar */
- __va(leon_nbgetchar), __va(leon_nbputchar),
- NULL,
- __va(leon_reboot),
- NULL,
- NULL,
- NULL,
- __va(leon_halt),
- __va(&spi.synchook),
- {NULL},
- __va(&spi.bootargs_p)
- /*... */
- },
- {
- {0, __va(spi.root_properties + 3) /* NULL, NULL, -1 */ },
- {0, __va(spi.root_properties)},
- /* cpu 0, must be spi.nodes[2] see leon_prom_init() */
- {1, __va(spi.cpu_properties)},
-
-#undef CPUENTRY
-#define CPUENTRY(idx) \
- {1, __va(spi.cpu_properties##idx) } /* cpu <idx> */
- CPUENTRY(1),
- CPUENTRY(2),
- CPUENTRY(3),
- CPUENTRY(4),
- CPUENTRY(5),
- CPUENTRY(6),
- CPUENTRY(7),
- CPUENTRY(8),
- CPUENTRY(9),
- CPUENTRY(10),
- CPUENTRY(11),
- CPUENTRY(12),
- CPUENTRY(13),
- CPUENTRY(14),
- CPUENTRY(15),
- CPUENTRY(16),
- CPUENTRY(17),
- CPUENTRY(18),
- CPUENTRY(19),
- CPUENTRY(20),
- CPUENTRY(21),
- CPUENTRY(22),
- CPUENTRY(23),
- CPUENTRY(24),
- CPUENTRY(25),
- CPUENTRY(26),
- CPUENTRY(27),
- CPUENTRY(28),
- CPUENTRY(29),
- CPUENTRY(30),
- CPUENTRY(31),
- {-1, __va(spi.root_properties + 3) /* NULL, NULL, -1 */ }
- },
- "device_type",
- "cpu",
- "mid",
- "idprom",
- "compatability",
- "leon2",
- "mmu-nctx",
- "clock-frequency",
- "uart1_baud",
- "uart2_baud",
- CONFIG_DEFAULT_KERNEL_COMMAND_LINE
-};
-
-/* from arch/sparc/kernel/setup.c */
-#define RAMDISK_LOAD_FLAG 0x4000
-extern unsigned short root_flags;
-extern unsigned short root_dev;
-extern unsigned short ram_flags;
-extern unsigned int sparc_ramdisk_image;
-extern unsigned int sparc_ramdisk_size;
-extern int root_mountflags;
-
-extern char initrd_end, initrd_start;
-
-/* Reboot the CPU = jump to beginning of flash again.
- *
- * Make sure that all function are inlined here.
- */
-static void PROM_TEXT leon_reboot(char *bcommand)
-{
- register char *arg = bcommand;
- void __attribute__ ((noreturn)) (*reboot_physical) (char *cmd);
-
- /* get physical address */
- struct leon_prom_info *pspi =
- (void *)(CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables));
-
- unsigned int *srmmu_ctx_table;
-
- /* Turn of Interrupts */
- set_pil(0xf);
-
- /* Set kernel's context, context zero */
- srmmu_set_context(0);
-
- /* Get physical address of the MMU shutdown routine */
- reboot_physical = (void *)
- SPARC_BYPASS_READ(&pspi->reloc_funcs.reboot_physical);
-
- /* Now that we know the physical address of the function
- * we can make the MMU allow jumping to it.
- */
- srmmu_ctx_table = (unsigned int *)srmmu_get_ctable_ptr();
-
- srmmu_ctx_table = (unsigned int *)SPARC_BYPASS_READ(srmmu_ctx_table);
-
- /* get physical address of kernel's context table (assume ptd) */
- srmmu_ctx_table = (unsigned int *)
- (((unsigned int)srmmu_ctx_table & 0xfffffffc) << 4);
-
- /* enable access to physical address of MMU shutdown function */
- SPARC_BYPASS_WRITE(&srmmu_ctx_table
- [((unsigned int)reboot_physical) >> 24],
- (((unsigned int)reboot_physical & 0xff000000) >> 4) |
- 0x1e);
-
- /* flush TLB cache */
- leon_flush_tlb_all();
-
- /* flash instruction & data cache */
- sparc_icache_flush_all();
- sparc_dcache_flush_all();
-
- /* jump to physical address function
- * so that when the MMU is disabled
- * we can continue to execute
- */
- reboot_physical(arg);
-}
-
-static void PROM_TEXT leon_reboot_physical(char *bcommand)
-{
- void __attribute__ ((noreturn)) (*reset) (void);
-
- /* Turn off MMU */
- srmmu_set_mmureg(0);
-
- /* Hardcoded start address */
- reset = CONFIG_SYS_MONITOR_BASE;
-
- /* flush data cache */
- sparc_dcache_flush_all();
-
- /* flush instruction cache */
- sparc_icache_flush_all();
-
- /* Jump to start in Flash */
- reset();
-}
-
-static void PROM_TEXT leon_halt(void)
-{
- while (1) ;
-}
-
-/* get single char, don't care for blocking*/
-static int PROM_TEXT leon_nbgetchar(void)
-{
- return -1;
-}
-
-/* put single char, don't care for blocking*/
-static int PROM_TEXT leon_nbputchar(int c)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
-
- /***** put char in buffer... ***********
- * Make sure all functions are inline! *
- ***************************************/
-
- /* Wait for last character to go. */
- while (!(SPARC_BYPASS_READ(&leon2->UART_Status_1)
- & LEON2_UART_STAT_THE)) ;
-
- /* Send data */
- SPARC_BYPASS_WRITE(&leon2->UART_Channel_1, c);
-
- /* Wait for data to be sent */
- while (!(SPARC_BYPASS_READ(&leon2->UART_Status_1)
- & LEON2_UART_STAT_TSE)) ;
-
- return 0;
-}
-
-/* node ops */
-
-/*#define nodes ((struct node *)__va(&pspi->nodes))*/
-#define nodes ((struct node *)(pspi->nodes))
-
-static int PROM_TEXT no_nextnode(int node)
-{
- /* get physical address */
- struct leon_prom_info *pspi =
- (void *)(CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables));
-
- /* convert into virtual address */
- pspi = (struct leon_prom_info *)
- (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET);
-
- if (nodes[node].level == nodes[node + 1].level)
- return node + 1;
- return -1;
-}
-
-static int PROM_TEXT no_child(int node)
-{
- /* get physical address */
- struct leon_prom_info *pspi = (struct leon_prom_info *)
- (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables));
-
- /* convert into virtual address */
- pspi = (struct leon_prom_info *)
- (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET);
-
- if (nodes[node].level == nodes[node + 1].level - 1)
- return node + 1;
- return -1;
-}
-
-static struct property PROM_TEXT *find_property(int node, char *name)
-{
- /* get physical address */
- struct leon_prom_info *pspi = (struct leon_prom_info *)
- (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables));
-
- /* convert into virtual address */
- pspi = (struct leon_prom_info *)
- (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET);
-
- struct property *prop = &nodes[node].properties[0];
- while (prop && prop->name) {
- if (pspi->reloc_funcs.strcmp(prop->name, name) == 0)
- return prop;
- prop++;
- }
- return NULL;
-}
-
-static int PROM_TEXT no_proplen(int node, char *name)
-{
- /* get physical address */
- struct leon_prom_info *pspi = (struct leon_prom_info *)
- (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables));
-
- /* convert into virtual address */
- pspi = (struct leon_prom_info *)
- (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET);
-
- struct property *prop = pspi->reloc_funcs.find_property(node, name);
- if (prop)
- return prop->length;
- return -1;
-}
-
-static int PROM_TEXT no_getprop(int node, char *name, char *value)
-{
- /* get physical address */
- struct leon_prom_info *pspi = (struct leon_prom_info *)
- (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables));
-
- /* convert into virtual address */
- pspi = (struct leon_prom_info *)
- (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET);
-
- struct property *prop = pspi->reloc_funcs.find_property(node, name);
- if (prop) {
- pspi->reloc_funcs.memcpy(value, prop->value, prop->length);
- return 1;
- }
- return -1;
-}
-
-static int PROM_TEXT no_setprop(int node, char *name, char *value, int len)
-{
- return -1;
-}
-
-static char PROM_TEXT *no_nextprop(int node, char *name)
-{
- /* get physical address */
- struct leon_prom_info *pspi = (struct leon_prom_info *)
- (CONFIG_SYS_PROM_OFFSET + sizeof(srmmu_tables));
- struct property *prop;
-
- /* convert into virtual address */
- pspi = (struct leon_prom_info *)
- (((unsigned int)pspi & 0x0fffffff) | PAGE_OFFSET);
-
- if (!name || !name[0])
- return nodes[node].properties[0].name;
-
- prop = pspi->reloc_funcs.find_property(node, name);
- if (prop)
- return prop[1].name;
- return NULL;
-}
-
-static int PROM_TEXT leon_strcmp(const char *s1, const char *s2)
-{
- register char result;
-
- while (1) {
- result = *s1 - *s2;
- if (result || !*s1)
- break;
- s2++;
- s1++;
- }
-
- return result;
-}
-
-static void *PROM_TEXT leon_memcpy(void *dest, const void *src, size_t n)
-{
- char *dst = (char *)dest, *source = (char *)src;
-
- while (n--) {
- *dst = *source;
- dst++;
- source++;
- }
- return dest;
-}
-
-#define GETREGSP(sp) __asm__ __volatile__("mov %%sp, %0" : "=r" (sp))
-
-void leon_prom_init(struct leon_prom_info *pspi)
-{
- unsigned long i;
- unsigned char cksum, *ptr;
- char *addr_str, *end;
- unsigned long sp;
- GETREGSP(sp);
-
- pspi->freq_khz = CONFIG_SYS_CLK_FREQ / 1000;
-
- /* Set Available main memory size */
- pspi->totphys.num_bytes = CONFIG_SYS_PROM_OFFSET - CONFIG_SYS_SDRAM_BASE;
- pspi->avail.num_bytes = pspi->totphys.num_bytes;
-
-#undef nodes
- pspi->nodes[3].level = -1;
- pspi->nodes[3].properties = __va(spi.root_properties + 3);
-
- /* Set Ethernet MAC address from environment */
- if ((addr_str = getenv("ethaddr")) != NULL) {
- for (i = 0; i < 6; i++) {
- pspi->idprom.id_ethaddr[i] = addr_str ?
- simple_strtoul(addr_str, &end, 16) : 0;
- if (addr_str) {
- addr_str = (*end) ? end + 1 : end;
- }
- }
- } else {
- /* HW Address not found in environment,
- * Set default HW address
- */
- pspi->idprom.id_ethaddr[0] = 0;
- pspi->idprom.id_ethaddr[1] = 0;
- pspi->idprom.id_ethaddr[2] = 0;
- pspi->idprom.id_ethaddr[3] = 0;
- pspi->idprom.id_ethaddr[4] = 0;
- pspi->idprom.id_ethaddr[5] = 0;
- }
-
- ptr = (unsigned char *)&pspi->idprom;
- for (i = cksum = 0; i <= 0x0E; i++)
- cksum ^= *ptr++;
- pspi->idprom.id_cksum = cksum;
-}
-
-static inline void set_cache(unsigned long regval)
-{
- asm volatile ("sta %0, [%%g0] %1\n\t":: "r" (regval), "i"(2):"memory");
-}
-
-extern unsigned short bss_start, bss_end;
-
-/* mark as section .img.main.text, to be referenced in linker script */
-int prom_init(void)
-{
- struct leon_prom_info *pspi = (void *)
- ((((unsigned int)&spi) & PROM_SIZE_MASK) + CONFIG_SYS_PROM_OFFSET);
-
- /* disable mmu */
- srmmu_set_mmureg(0x00000000);
- __asm__ __volatile__("flush\n\t");
-
- /* init prom info struct */
- leon_prom_init(pspi);
-
- kernel_arg_promvec = &pspi->romvec;
-#ifdef PRINT_ROM_VEC
- printf("Kernel rom vec: 0x%lx\n", (unsigned int)(&pspi->romvec));
-#endif
- return 0;
-}
-
-/* Copy current kernel boot argument to ROMvec */
-void prepare_bootargs(char *bootargs)
-{
- struct leon_prom_info *pspi;
- char *src, *dst;
- int left;
-
- /* if no bootargs set, skip copying ==> default bootline */
- if (bootargs && (*bootargs != '\0')) {
- pspi = (void *)((((unsigned int)&spi) & PROM_SIZE_MASK) +
- CONFIG_SYS_PROM_OFFSET);
- src = bootargs;
- dst = &pspi->arg[0];
- left = 255; /* max len */
- while (*src && left > 0) {
- *dst++ = *src++;
- left--;
- }
- /* terminate kernel command line string */
- *dst = 0;
- }
-}
-
-void srmmu_init_cpu(unsigned int entry)
-{
- sparc_srmmu_setup *psrmmu_tables = (void *)
- ((((unsigned int)&srmmu_tables) & PROM_SIZE_MASK) +
- CONFIG_SYS_PROM_OFFSET);
-
- /* Make context 0 (kernel's context) point
- * to our prepared memory mapping
- */
-#define PTD 1
- psrmmu_tables->ctx_table[0] =
- ((unsigned int)&psrmmu_tables->pgd_table[0x00]) >> 4 | PTD;
-
- /* Set virtual kernel address 0xf0000000
- * to SRAM/SDRAM address.
- * Make it READ/WRITE/EXEC to SuperUser
- */
-#define PTE 2
-#define ACC_SU_ALL 0x1c
- psrmmu_tables->pgd_table[0xf0] =
- (CONFIG_SYS_SDRAM_BASE >> 4) | ACC_SU_ALL | PTE;
- psrmmu_tables->pgd_table[0xf1] =
- ((CONFIG_SYS_SDRAM_BASE + 0x1000000) >> 4) | ACC_SU_ALL | PTE;
- psrmmu_tables->pgd_table[0xf2] =
- ((CONFIG_SYS_SDRAM_BASE + 0x2000000) >> 4) | ACC_SU_ALL | PTE;
- psrmmu_tables->pgd_table[0xf3] =
- ((CONFIG_SYS_SDRAM_BASE + 0x3000000) >> 4) | ACC_SU_ALL | PTE;
- psrmmu_tables->pgd_table[0xf4] =
- ((CONFIG_SYS_SDRAM_BASE + 0x4000000) >> 4) | ACC_SU_ALL | PTE;
- psrmmu_tables->pgd_table[0xf5] =
- ((CONFIG_SYS_SDRAM_BASE + 0x5000000) >> 4) | ACC_SU_ALL | PTE;
- psrmmu_tables->pgd_table[0xf6] =
- ((CONFIG_SYS_SDRAM_BASE + 0x6000000) >> 4) | ACC_SU_ALL | PTE;
- psrmmu_tables->pgd_table[0xf7] =
- ((CONFIG_SYS_SDRAM_BASE + 0x7000000) >> 4) | ACC_SU_ALL | PTE;
-
- /* convert rom vec pointer to virtual address */
- kernel_arg_promvec = (struct linux_romvec *)
- (((unsigned int)kernel_arg_promvec & 0x0fffffff) | 0xf0000000);
-
- /* Set Context pointer to point to context table
- * 256 contexts supported.
- */
- srmmu_set_ctable_ptr((unsigned int)&psrmmu_tables->ctx_table[0]);
-
- /* Set kernel's context, context zero */
- srmmu_set_context(0);
-
- /* Invalidate all Cache */
- __asm__ __volatile__("flush\n\t");
-
- srmmu_set_mmureg(0x00000001);
- leon_flush_tlb_all();
- leon_flush_cache_all();
-}
diff --git a/cpu/leon2/serial.c b/cpu/leon2/serial.c
deleted file mode 100644
index 4f41b8e6aa..0000000000
--- a/cpu/leon2/serial.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/* GRLIB APBUART Serial controller driver
- *
- * (C) Copyright 2008
- * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-#include <asm/processor.h>
-#include <asm/leon.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* Force cache miss each time a serial controller reg is read */
-#define CACHE_BYPASS 1
-
-#ifdef CACHE_BYPASS
-#define READ_BYTE(var) SPARC_NOCACHE_READ_BYTE((unsigned int)&(var))
-#define READ_HWORD(var) SPARC_NOCACHE_READ_HWORD((unsigned int)&(var))
-#define READ_WORD(var) SPARC_NOCACHE_READ((unsigned int)&(var))
-#define READ_DWORD(var) SPARC_NOCACHE_READ_DWORD((unsigned int)&(var))
-#endif
-
-int serial_init(void)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
- LEON2_Uart_regs *regs;
- unsigned int tmp;
-
- /* Init LEON2 UART
- *
- * Set scaler / baud rate
- *
- * Receiver & transmitter enable
- */
-#if LEON2_CONSOLE_SELECT == LEON_CONSOLE_UART1
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_1;
-#else
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_2;
-#endif
-
- regs->UART_Scaler = CONFIG_SYS_LEON2_UART1_SCALER;
-
- /* Let bit 11 be unchanged (debug bit for GRMON) */
- tmp = READ_WORD(regs->UART_Control);
-
- regs->UART_Control = ((tmp & LEON2_UART_CTRL_DBG) |
- (LEON2_UART1_LOOPBACK_ENABLE << 7) |
- (LEON2_UART1_FLOWCTRL_ENABLE << 6) |
- (LEON2_UART1_PARITY_ENABLE << 5) |
- (LEON2_UART1_ODDPAR_ENABLE << 4) |
- LEON2_UART_CTRL_RE | LEON2_UART_CTRL_TE);
-
- return 0;
-}
-
-void serial_putc(const char c)
-{
- if (c == '\n')
- serial_putc_raw('\r');
-
- serial_putc_raw(c);
-}
-
-void serial_putc_raw(const char c)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
- LEON2_Uart_regs *regs;
-
-#if LEON2_CONSOLE_SELECT == LEON_CONSOLE_UART1
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_1;
-#else
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_2;
-#endif
-
- /* Wait for last character to go. */
- while (!(READ_WORD(regs->UART_Status) & LEON2_UART_STAT_THE)) ;
-
- /* Send data */
- regs->UART_Channel = c;
-
-#ifdef LEON_DEBUG
- /* Wait for data to be sent */
- while (!(READ_WORD(regs->UART_Status) & LEON2_UART_STAT_TSE)) ;
-#endif
-}
-
-void serial_puts(const char *s)
-{
- while (*s) {
- serial_putc(*s++);
- }
-}
-
-int serial_getc(void)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
- LEON2_Uart_regs *regs;
-
-#if LEON2_CONSOLE_SELECT == LEON_CONSOLE_UART1
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_1;
-#else
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_2;
-#endif
-
- /* Wait for a character to arrive. */
- while (!(READ_WORD(regs->UART_Status) & LEON2_UART_STAT_DR)) ;
-
- /* read data */
- return READ_WORD(regs->UART_Channel);
-}
-
-int serial_tstc(void)
-{
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
- LEON2_Uart_regs *regs;
-
-#if LEON2_CONSOLE_SELECT == LEON_CONSOLE_UART1
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_1;
-#else
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_2;
-#endif
-
- return (READ_WORD(regs->UART_Status) & LEON2_UART_STAT_DR);
-}
-
-/* set baud rate for uart */
-void serial_setbrg(void)
-{
- /* update baud rate settings, read it from gd->baudrate */
- unsigned int scaler;
- LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
- LEON2_Uart_regs *regs;
-
-#if LEON2_CONSOLE_SELECT == LEON_CONSOLE_UART1
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_1;
-#else
- regs = (LEON2_Uart_regs *) & leon2->UART_Channel_2;
-#endif
-
- if (gd->baudrate > 0) {
- scaler =
- (((CONFIG_SYS_CLK_FREQ * 10) / (gd->baudrate * 8)) -
- 5) / 10;
- regs->UART_Scaler = scaler;
- }
-}
diff --git a/cpu/leon2/start.S b/cpu/leon2/start.S
deleted file mode 100644
index b1f1eb5f3c..0000000000
--- a/cpu/leon2/start.S
+++ /dev/null
@@ -1,662 +0,0 @@
-/* This is where the SPARC/LEON3 starts
- * Copyright (C) 2007,
- * Daniel Hellstrom, daniel@gaisler.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <config.h>
-#include <asm/asmmacro.h>
-#include <asm/winmacro.h>
-#include <asm/psr.h>
-#include <asm/stack.h>
-#include <asm/leon.h>
-#include <timestamp.h>
-#include <version.h>
-
-/* Entry for traps which jump to a programmer-specified trap handler. */
-#define TRAPR(H) \
- wr %g0, 0xfe0, %psr; \
- mov %g0, %tbr; \
- ba (H); \
- mov %g0, %wim;
-
-#define TRAP(H) \
- mov %psr, %l0; \
- ba (H); \
- nop; nop;
-
-#define TRAPI(ilevel) \
- mov ilevel, %l7; \
- mov %psr, %l0; \
- b _irq_entry; \
- mov %wim, %l3
-
-/* Unexcpected trap will halt the processor by forcing it to error state */
-#undef BAD_TRAP
-#define BAD_TRAP ta 0; nop; nop; nop;
-
-/* Software trap. Treat as BAD_TRAP for the time being... */
-#define SOFT_TRAP TRAP(_hwerr)
-
-#define PSR_INIT 0x1FC0 /* Disable traps, set s and ps */
-#define WIM_INIT 2
-
-/* All traps low-level code here must end with this macro. */
-#define RESTORE_ALL b ret_trap_entry; clr %l6;
-
-#define WRITE_PAUSE nop;nop;nop
-
-WINDOWSIZE = (16 * 4)
-ARGPUSHSIZE = (6 * 4)
-ARGPUSH = (WINDOWSIZE + 4)
-MINFRAME = (WINDOWSIZE + ARGPUSHSIZE + 4)
-
-/* Number of register windows */
-#ifndef CONFIG_SYS_SPARC_NWINDOWS
-#error Must define number of SPARC register windows, default is 8
-#endif
-
-#define STACK_ALIGN 8
-#define SA(X) (((X)+(STACK_ALIGN-1)) & ~(STACK_ALIGN-1))
-
- .section ".start", "ax"
- .globl _start, start, _trap_table
- .globl _irq_entry, nmi_trap
- .globl _reset_reloc
-
-/* at address 0
- * Hardware traps
- */
-start:
-_start:
-_trap_table:
- TRAPR(_hardreset); ! 00 reset trap
- BAD_TRAP; ! 01 instruction_access_exception
- BAD_TRAP; ! 02 illegal_instruction
- BAD_TRAP; ! 03 priveleged_instruction
- BAD_TRAP; ! 04 fp_disabled
- TRAP(_window_overflow); ! 05 window_overflow
- TRAP(_window_underflow); ! 06 window_underflow
- BAD_TRAP; ! 07 Memory Address Not Aligned
- BAD_TRAP; ! 08 Floating Point Exception
- BAD_TRAP; ! 09 Data Miss Exception
- BAD_TRAP; ! 0a Tagged Instruction Ovrflw
- BAD_TRAP; ! 0b Watchpoint Detected
- BAD_TRAP; ! 0c
- BAD_TRAP; ! 0d
- BAD_TRAP; ! 0e
- BAD_TRAP; ! 0f
- BAD_TRAP; ! 10
- TRAPI(1); ! 11 IRQ level 1
- TRAPI(2); ! 12 IRQ level 2
- TRAPI(3); ! 13 IRQ level 3
- TRAPI(4); ! 14 IRQ level 4
- TRAPI(5); ! 15 IRQ level 5
- TRAPI(6); ! 16 IRQ level 6
- TRAPI(7); ! 17 IRQ level 7
- TRAPI(8); ! 18 IRQ level 8
- TRAPI(9); ! 19 IRQ level 9
- TRAPI(10); ! 1a IRQ level 10
- TRAPI(11); ! 1b IRQ level 11
- TRAPI(12); ! 1c IRQ level 12
- TRAPI(13); ! 1d IRQ level 13
- TRAPI(14); ! 1e IRQ level 14
- TRAP(_nmi_trap); ! 1f IRQ level 15 /
- ! NMI (non maskable interrupt)
- BAD_TRAP; ! 20 r_register_access_error
- BAD_TRAP; ! 21 instruction access error
- BAD_TRAP; ! 22
- BAD_TRAP; ! 23
- BAD_TRAP; ! 24 co-processor disabled
- BAD_TRAP; ! 25 uniplemented FLUSH
- BAD_TRAP; ! 26
- BAD_TRAP; ! 27
- BAD_TRAP; ! 28 co-processor exception
- BAD_TRAP; ! 29 data access error
- BAD_TRAP; ! 2a division by zero
- BAD_TRAP; ! 2b data store error
- BAD_TRAP; ! 2c data access MMU miss
- BAD_TRAP; ! 2d
- BAD_TRAP; ! 2e
- BAD_TRAP; ! 2f
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 30-33
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 34-37
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 38-3b
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 3c-3f
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 40-43
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 44-47
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 48-4b
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 4c-4f
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 50-53
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 54-57
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 58-5b
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 5c-5f
-
- /* implementaion dependent */
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 60-63
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 64-67
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 68-6b
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 6c-6f
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 70-73
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 74-77
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 78-7b
- BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 7c-7f
-
- /* Software traps, not handled */
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 80-83
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 84-87
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 88-8b
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 8c-8f
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 90-93
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 94-97
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 98-9b
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 9c-9f
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! a0-a3
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! a4-a7
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! a8-ab
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! ac-af
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! b0-b3
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! b4-b7
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! b8-bb
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! bc-bf
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! c0-c3
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! c4-c7
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! c8-cb
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! cc-cf
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! d0-d3
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! d4-d7
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! d8-db
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! dc-df
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! e0-e3
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! e4-e7
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! e8-eb
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! ec-ef
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! f0-f3
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! f4-f7
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! f8-fb
- SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! fc-ff
-/*
- * Version string
- */
-
- .data
- .globl version_string
-version_string:
- .ascii U_BOOT_VERSION
- .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
- .ascii CONFIG_IDENT_STRING, "\0"
-
- .section ".text"
- .align 4
-
-_hardreset:
-1000:
- flush
- nop
- nop
- nop
-
- /* Init Cache */
- set (LEON2_PREGS+LEON_REG_CACHECTRL_OFFSET), %g1
- set 0x0081000f, %g2
- st %g2, [%g1]
-
- mov %g0, %y
- clr %g1
- clr %g2
- clr %g3
- clr %g4
- clr %g5
- clr %g6
- clr %g7
-
- mov %asr17, %g3
- and %g3, 0x1f, %g3
-clear_window:
- mov %g0, %l0
- mov %g0, %l1
- mov %g0, %l2
- mov %g0, %l3
- mov %g0, %l4
- mov %g0, %l5
- mov %g0, %l6
- mov %g0, %l7
- mov %g0, %o0
- mov %g0, %o1
- mov %g0, %o2
- mov %g0, %o3
- mov %g0, %o4
- mov %g0, %o5
- mov %g0, %o6
- mov %g0, %o7
- subcc %g3, 1, %g3
- bge clear_window
- save
-
-leon2_init:
- /* LEON2 Register Base in g1 */
- set LEON2_PREGS, %g1
-
-leon2_init_cache:
- /* Set Cache control register */
- set 0x1000f, %g2
- st %g2, [%g1 + 0x14]
-
-leon2_init_clear:
-
- /* Clear LEON2 registers */
- st %g0, [%g1 + LEON2_ECTRL]
- st %g0, [%g1 + LEON2_IMASK]
- st %g0, [%g1 + LEON2_IPEND]
- st %g0, [%g1 + LEON2_IFORCE]
- st %g0, [%g1 + LEON2_ICLEAR]
- st %g0, [%g1 + LEON2_IOREG]
- st %g0, [%g1 + LEON2_IODIR]
- st %g0, [%g1 + LEON2_IOICONF]
- st %g0, [%g1 + LEON2_UCTRL0]
- st %g0, [%g1 + LEON2_UCTRL1]
-
-leon2_init_ioport:
- /* I/O port initialization */
- set 0xaa00, %g2
- st %g2, [%g1 + LEON2_IOREG]
-
-leon2_init_mctrl:
-
- /* memory config register 1 */
- set CONFIG_SYS_GRLIB_MEMCFG1, %g2
- ld [%g1], %g3 !
- and %g3, 0x300, %g3
- or %g2, %g3, %g2
- st %g2, [%g1 + LEON2_MCFG1]
- set CONFIG_SYS_GRLIB_MEMCFG2, %g2 ! Load memory config register 2
-#if !( defined(TSIM) || !defined(BZIMAGE))
- st %g2, [%g1 + LEON2_MCFG2] ! only for prom version, else done by "dumon -i"
-#endif
- set CONFIG_SYS_GRLIB_MEMCFG3, %g2 ! Init FT register
- st %g2, [%g1 + LEON2_ECTRL]
- ld [%g1 + LEON2_ECTRL], %g2
- srl %g2, 30, %g2
- andcc %g2, 3, %g6
- bne,a leon2_init_wim
- mov %g0, %asr16 ! clear err_reg
-
-leon2_init_wim:
- set WIM_INIT, %g3
- mov %g3, %wim
-
-leon2_init_psr:
- set 0x1000, %g3
- mov %psr, %g2
- wr %g2, %g3, %psr
- nop
- nop
- nop
-
-leon2_init_stackp:
- set CONFIG_SYS_INIT_SP_OFFSET, %fp
- andn %fp, 0x0f, %fp
- sub %fp, 64, %sp
-
-cpu_init_unreloc:
- call cpu_init_f
- nop
-
-/* un relocated start address of monitor */
-#define TEXT_START _text
-
-/* un relocated end address of monitor */
-#define DATA_END __init_end
-
-reloc:
- set TEXT_START,%g2
- set DATA_END,%g3
- set CONFIG_SYS_RELOC_MONITOR_BASE,%g4
-reloc_loop:
- ldd [%g2],%l0
- ldd [%g2+8],%l2
- std %l0,[%g4]
- std %l2,[%g4+8]
- inc 16,%g2
- subcc %g3,%g2,%g0
- bne reloc_loop
- inc 16,%g4
-
- clr %l0
- clr %l1
- clr %l2
- clr %l3
- clr %g2
-
-/* register g4 contain address to start
- * This means that BSS must be directly after data and code segments
- *
- * g3 is length of bss = (__bss_end-__bss_start)
- *
- */
-
-clr_bss:
-/* clear bss area (the relocated) */
- set __bss_start,%g2
- set __bss_end,%g3
- sub %g3,%g2,%g3
- add %g3,%g4,%g3
- clr %g1 /* std %g0 uses g0 and g1 */
-/* clearing 16byte a time ==> linker script need to align to 16 byte offset */
-clr_bss_16:
- std %g0,[%g4]
- std %g0,[%g4+8]
- inc 16,%g4
- cmp %g3,%g4
- bne clr_bss_16
- nop
-
-/* add offsets to GOT table */
-fixup_got:
- set __got_start,%g4
- set __got_end,%g3
-/*
- * new got offset = (old GOT-PTR (read with ld) -
- * CONFIG_SYS_RELOC_MONITOR_BASE(from define) ) +
- * Destination Address (from define)
- */
- set CONFIG_SYS_RELOC_MONITOR_BASE,%g2
- set TEXT_START, %g1
- add %g4,%g2,%g4
- sub %g4,%g1,%g4
- add %g3,%g2,%g3
- sub %g3,%g1,%g3
- sub %g2,%g1,%g2 ! prepare register with (new base address) -
- ! (old base address)
-got_loop:
- ld [%g4],%l0 ! load old GOT-PTR
- add %l0,%g2,%l0 ! increase with (new base address) -
- ! (old base)
- st %l0,[%g4]
- inc 4,%g4
- cmp %g3,%g4
- bne got_loop
- nop
-
-prom_relocate:
- set __prom_start, %g2
- set __prom_end, %g3
- set CONFIG_SYS_PROM_OFFSET, %g4
-
-prom_relocate_loop:
- ldd [%g2],%l0
- ldd [%g2+8],%l2
- std %l0,[%g4]
- std %l2,[%g4+8]
- inc 16,%g2
- subcc %g3,%g2,%g0
- bne prom_relocate_loop
- inc 16,%g4
-
-/* Trap table has been moved, lets tell CPU about
- * the new trap table address
- */
-
- set CONFIG_SYS_RELOC_MONITOR_BASE, %g2
- wr %g0, %g2, %tbr
-
-/* call relocate*/
- nop
-/* Call relocated init functions */
-jump:
- set cpu_init_f2,%o1
- set CONFIG_SYS_RELOC_MONITOR_BASE,%o2
- add %o1,%o2,%o1
- sub %o1,%g1,%o1
- call %o1
- clr %o0
-
- set board_init_f,%o1
- set CONFIG_SYS_RELOC_MONITOR_BASE,%o2
- add %o1,%o2,%o1
- sub %o1,%g1,%o1
- call %o1
- clr %o0
-
-dead: ta 0 ! if call returns...
- nop
-
-/* Interrupt handler caller,
- * reg L7: interrupt number
- * reg L0: psr after interrupt
- * reg L1: PC
- * reg L2: next PC
- * reg L3: wim
- */
-_irq_entry:
- SAVE_ALL
-
- or %l0, PSR_PIL, %g2
- wr %g2, 0x0, %psr
- WRITE_PAUSE
- wr %g2, PSR_ET, %psr
- WRITE_PAUSE
- mov %l7, %o0 ! irq level
- set handler_irq, %o1
- set (CONFIG_SYS_RELOC_MONITOR_BASE-TEXT_BASE), %o2
- add %o1, %o2, %o1
- call %o1
- add %sp, SF_REGS_SZ, %o1 ! pt_regs ptr
- or %l0, PSR_PIL, %g2 ! restore PIL after handler_irq
- wr %g2, PSR_ET, %psr ! keep ET up
- WRITE_PAUSE
-
- RESTORE_ALL
-
-!Window overflow trap handler.
- .global _window_overflow
-
-_window_overflow:
-
- mov %wim, %l3 ! Calculate next WIM
- mov %g1, %l7
- srl %l3, 1, %g1
- sll %l3, (CONFIG_SYS_SPARC_NWINDOWS-1) , %l4
- or %l4, %g1, %g1
-
- save ! Get into window to be saved.
- mov %g1, %wim
- nop;
- nop;
- nop
- st %l0, [%sp + 0];
- st %l1, [%sp + 4];
- st %l2, [%sp + 8];
- st %l3, [%sp + 12];
- st %l4, [%sp + 16];
- st %l5, [%sp + 20];
- st %l6, [%sp + 24];
- st %l7, [%sp + 28];
- st %i0, [%sp + 32];
- st %i1, [%sp + 36];
- st %i2, [%sp + 40];
- st %i3, [%sp + 44];
- st %i4, [%sp + 48];
- st %i5, [%sp + 52];
- st %i6, [%sp + 56];
- st %i7, [%sp + 60];
- restore ! Go back to trap window.
- mov %l7, %g1
- jmp %l1 ! Re-execute save.
- rett %l2
-
-/* Window underflow trap handler. */
-
- .global _window_underflow
-
-_window_underflow:
-
- mov %wim, %l3 ! Calculate next WIM
- sll %l3, 1, %l4
- srl %l3, (CONFIG_SYS_SPARC_NWINDOWS-1), %l5
- or %l5, %l4, %l5
- mov %l5, %wim
- nop; nop; nop
- restore ! Two restores to get into the
- restore ! window to restore
- ld [%sp + 0], %l0; ! Restore window from the stack
- ld [%sp + 4], %l1;
- ld [%sp + 8], %l2;
- ld [%sp + 12], %l3;
- ld [%sp + 16], %l4;
- ld [%sp + 20], %l5;
- ld [%sp + 24], %l6;
- ld [%sp + 28], %l7;
- ld [%sp + 32], %i0;
- ld [%sp + 36], %i1;
- ld [%sp + 40], %i2;
- ld [%sp + 44], %i3;
- ld [%sp + 48], %i4;
- ld [%sp + 52], %i5;
- ld [%sp + 56], %i6;
- ld [%sp + 60], %i7;
- save ! Get back to the trap window.
- save
- jmp %l1 ! Re-execute restore.
- rett %l2
-
- retl
-
-_nmi_trap:
- nop
- jmp %l1
- rett %l2
-
-_hwerr:
- ta 0
- nop
- nop
- b _hwerr ! loop infinite
- nop
-
-/* Registers to not touch at all. */
-#define t_psr l0 /* Set by caller */
-#define t_pc l1 /* Set by caller */
-#define t_npc l2 /* Set by caller */
-#define t_wim l3 /* Set by caller */
-#define t_twinmask l4 /* Set at beginning of this entry routine. */
-#define t_kstack l5 /* Set right before pt_regs frame is built */
-#define t_retpc l6 /* If you change this, change winmacro.h header file */
-#define t_systable l7 /* Never touch this, could be the syscall table ptr. */
-#define curptr g6 /* Set after pt_regs frame is built */
-
-trap_setup:
-/* build a pt_regs trap frame. */
- sub %fp, (SF_REGS_SZ + PT_REGS_SZ), %t_kstack
- PT_STORE_ALL(t_kstack, t_psr, t_pc, t_npc, g2)
-
- /* See if we are in the trap window. */
- mov 1, %t_twinmask
- sll %t_twinmask, %t_psr, %t_twinmask ! t_twinmask = (1 << psr)
- andcc %t_twinmask, %t_wim, %g0
- beq 1f ! in trap window, clean up
- nop
-
- /*-------------------------------------------------
- * Spill , adjust %wim and go.
- */
- srl %t_wim, 0x1, %g2 ! begin computation of new %wim
-
- set (CONFIG_SYS_SPARC_NWINDOWS-1), %g3 !NWINDOWS-1
-
- sll %t_wim, %g3, %t_wim ! NWINDOWS-1
- or %t_wim, %g2, %g2
- and %g2, 0xff, %g2
-
- save %g0, %g0, %g0 ! get in window to be saved
-
- /* Set new %wim value */
- wr %g2, 0x0, %wim
-
- /* Save the kernel window onto the corresponding stack. */
- RW_STORE(sp)
-
- restore %g0, %g0, %g0
- /*-------------------------------------------------*/
-
-1:
- /* Trap from kernel with a window available.
- * Just do it...
- */
- jmpl %t_retpc + 0x8, %g0 ! return to caller
- mov %t_kstack, %sp ! jump onto new stack
-
-#define twin_tmp1 l4
-#define glob_tmp g4
-#define curptr g6
-ret_trap_entry:
- wr %t_psr, 0x0, %psr ! enable nesting again, clear ET
-
- /* Will the rett land us in the invalid window? */
- mov 2, %g1
- sll %g1, %t_psr, %g1
-
- set CONFIG_SYS_SPARC_NWINDOWS, %g2 !NWINDOWS
-
- srl %g1, %g2, %g2
- or %g1, %g2, %g1
- rd %wim, %g2
- andcc %g2, %g1, %g0
- be 1f ! Nope, just return from the trap
- sll %g2, 0x1, %g1
-
- /* We have to grab a window before returning. */
- set (CONFIG_SYS_SPARC_NWINDOWS-1), %g3 !NWINDOWS-1
-
- srl %g2, %g3, %g2
- or %g1, %g2, %g1
- and %g1, 0xff, %g1
-
- wr %g1, 0x0, %wim
-
- /* Grrr, make sure we load from the right %sp... */
- PT_LOAD_ALL(sp, t_psr, t_pc, t_npc, g1)
-
- restore %g0, %g0, %g0
- RW_LOAD(sp)
- b 2f
- save %g0, %g0, %g0
-
- /* Reload the entire frame in case this is from a
- * kernel system call or whatever...
- */
-1:
- PT_LOAD_ALL(sp, t_psr, t_pc, t_npc, g1)
-2:
- wr %t_psr, 0x0, %psr
- nop;
- nop;
- nop
-
- jmp %t_pc
- rett %t_npc
-
-/* This is called from relocated C-code.
- * It resets the system by jumping to _start
- */
-_reset_reloc:
- set start, %l0
- call %l0
- nop
generated by cgit (git 2.34.1) at 2024-12-29 06:16:06 +0000